1.9k citations · 4.9k across the 94 of their papers we have counts for
12 papers · 1 filter
Scaling of geometric phase versus band structure in cluster-Ising models
Wei Nie, Feng Mei, Luigi Amico +1
We study the phase diagram of a class of models in which a generalized cluster interaction can be quenched by Ising exchange interaction and external magnetic field. We characteriz…
Local convertibility and the quantum simulation of edge states in many-body systems
Fabio Franchini, Jian Cui, Luigi Amico +5
In some many-body systems, certain ground state entanglement (Renyi) entropies increase even as the correlation length decreases. This entanglement non-monotonicity is a potential…
Quantum discord in a spin system with symmetry breaking
Bruno Tomasello, Davide Rossini, Alioscia Hamma +1
We analyze the quantum discord Q throughout the low-temperature phase diagram of the quantum XY model in transverse field. We first focus on the T=0 order-disorder quantum phase tr…
Entanglement and magnetic order
Luigi Amico, Rosario Fazio
In recent years quantum statistical mechanics have benefited of cultural interchanges with quantum information science. There is a bulk of evidence that quantifying the entanglemen…
Adiabatic dynamics of a quantum critical system coupled to an environment: Scaling and kinetic equation approaches
Dario Patanè, Alessandro Silva, Luigi Amico +2
We study the dynamics of open quantum many-body systems driven across a critical point by quenching an Hamiltonian parameter at a certain velocity. General scaling laws are derived…
Thermalization dynamics close to a quantum phase transition
Dario Patanè, Alessandro Silva, Fernando Sols +1
We investigate the dissipative dynamics of a quantum critical system in contact with a thermal bath. In analogy with the standard protocol employed to analyze aging, we study the r…
Adiabatic dynamics in open quantum critical many-body systems
Dario Patanè, Alessandro Silva, Luigi Amico +2
The purpose of this work is to understand the effect of an external environment on the adiabatic dynamics of a quantum critical system. By means of scaling arguments we derive a ge…
Divergence of the entanglement range in low dimensional quantum systems
L. Amico, F. Baroni, A. Fubini +3
We study the pairwise entanglement close to separable ground states of a class of one dimensional quantum spin models. At T=0 we find that such ground states separate regions, in t…
Universality of the one dimensional Bose gas with delta interaction
Luigi Amico, Vladimir Korepin
We consider several models of interacting bosons in a one dimensional lattice. Some of them are not integrable like the Bose-Hubbard others are integrable. At low density all of th…
Quasi-classical descendants of disordered vertex models with boundaries
Antonio Di Lorenzo, Luigi Amico, Kazuhiro Hikami +2
We study descendants of inhomogeneous vertex models with boundary reflections when the spin-spin scattering is assumed to be quasi--classical. This corresponds to consider certain…
The BCS model and the off shell Bethe ansatz for vertex models
Luigi Amico, G. Falci, Rosario Fazio
We study the connection between the BCS pairing model and the inhomogeneous vertex model. The two spectral problems coincide in the quasi-classical limit of the off-shell Bethe Ans…
Algebraic equivalence between certain models for superfluid--insulator transition
Luigi Amico
Algebraic contraction is proposed to realize mappings between models Hamiltonians. This transformation contracts the algebra of the degrees of freedom underlying the Hamiltonian. T…